Skidder and hoisting attachment for tractors



Patented Mar. 10, 1925.

crevice nonsnr, F ELBA, A ABAMA.

sxmmm ANDs mom's-me n rrnonmrm Font 'L'RACTO'RSi Application filed May 26.,

$0. all whomit:m-ayconccm-z a j Be it known that I, CLAUDE E. Donsmg, a citizen oi the: United States, residinggat Elha-;,, im the county of. Qoifee and State 055 Alabama, have imaented certain new and USQ/ilhlzl; InapIsov-ements in. Skiclder and H0ist mg Attachments. fory Tlgactors; and I do hereby declane the" following to be..- a tall, clear, and exact. description 01f the invention, such. as; will, enable others skilled in the art. to which itapperta-ins; to ntalce and use the. same. This intention. relates to.- a ski-doles and hoisting attachment fen tractors. I5; It genenally aims to; improv slmpllfiy and renden more efficient the construction oil stamp milling and; SlE-idstl-(Hi.M111dtGlZLII-I811113 for tractors;

Particularly it. is aimed! to provide-- novel 20 means whereby the lewemge and! torsion ap plied to the drumlonv windlassmay be-material-ly increase/ell; to.- PEOVL lQ' a construe?- tion wherein the gearing is greatly simpllr; fied and. includes a novel eccentric, monnting; ion the power-'2 or master shaft to cnable it to, be napidly thrown into and out ozfidrlw in-g: relation with the associated parts; to

emon-tale a tor-n1a in which the grouml Whee s have; novel. connection: with, thesteering gear at thegtractov; to ]PZ[i0ide.--1IV&LII1BW 01.- 7 connection of the; attachmcntto the tractom." topronide a novel goals amangoment. whereby a gear: in combination with novel means may serve as thebraki-ng-mechanism; and to. pro-videa construction oithe novel; andcom. pact; foam disclosed 1n accompanylngs draw hugs;- and to be. pointed: out more in deta l hereinafter; 1 j M a f1 fAdditional objects and advantages will'he ointed oil-ton become a gamut from a. con,- sideration ofi the fol Wing description taken connection with said drawings.

In said drawingsw i Figure l is a plan View; I a a Fignre Q isa detail ie. spectl-ve VIEW particularly illustrating t eeocentrio andgad w instablemountingyfor drive or master shaft; and v c J i-gune 3 is, asectionalmew taken 0112171516 planeindiicatcd by thcl 1ne.3- 3o;t:F1gure 1.

Like reierence characters designate like or similar. parts the. cli-flerent views.

In reducingtheimiemtion to practice, a

suitable trance. is provided: as at. A and which consists ofi side beams lfl oi suitable size,

1923. s mi no. 641,539..

' and prefe tahly being metallic beams with the fian-ges, disposed horizontally j and, extending outwarzdly. Beams LOQad;

j acent; the front of the attachment are conncctcd bya cross bar or beam 11! suitably." fastened to the beams-"1.0 for instance by} rivets at l2." The forward ends of the beams 1,0 are adapted for connection; inany, suit, able. manner to the'tracto r and; preferably to; the rear axlehousing. this ehdclangpsB are carried by the beam and may consist. oii sections l qrivetedot otherwise rigidly sistl of liemovablc sections-15- bolted as. at. 1 6. and 1.7 to the sections 13 .The clamps are annular and the bolts; 16 and, 1 7' haveltheir xes at right, angles to, 7 each other whereby connected at .1 4: to 'said beams and also con? when. the bolts: 1? fare remotzed," thesections 15: may swing-on-the boltslfil relative to. the 2" sections 13 inorderr to, engage and disengage the rear axle housimgreferreclto. .The bolts- 1.7; may he fastened to such a degree; as. to:

rigidly .connect. the: bars 10. to. the; tractor or maybe sufficie'ntly loose toenaltlcthe. hars 1,0 to, swing fromisuch a le'as a-pi'xzot cordingtothe sunfaceof thezgrouncl over which the-attachment;- travels. The attach ingportions l8 ofthe; sefctiol i-s. 13, intimately fit betweenthe flanges of the beams, 10! 'zuid are accordingly braced thereby. A. cross-bar or plateil t connects the, rear ends. of sidebcaxns; toowhioh. is, "s wi-velly. mounted. 7 ground; wheels 29 30 indicating aking bolt to, which the flrameflcarrying said; ground Wheels is pivoted. to. said, cross barfiorl platefi li. The Work-01E tlieaattaol imentuis primarily adapted"- to; beperform ed;

orn u; as it has, a; slceye 34. andfe id clisks, or flanges and The periphery of l flange 36,. is, provided with spur. {gear teeth. 3J7.

passessthroughzthe sleeve 3.45 and the. two.- are keyed togethen "fonunitary,movementfand i the shafit jpurnaled in suitable. bearings The, (it'll 1112' G .openate's: onn ction with, a cableor other dram elemental which. is at.-

tachlable. thereto. in any suitable manner and which; for instance may have-a knot. 42 en:

'gageable in key-.lio-leslot. 4 Jofthe sleeve 1.

in ordervtoprovide shoulders at 5 2. EX-

tensions 51 are journaled in auxiliary bearings fastened by bolts or otherwise as at 54 to the side beams 10. The shoulders 52 abut the inner faces of the auxiliary bearings 58 andthus prevent displacement or movement of the bearings 50 along'shaft 46. One of'the bearings 53 is notched as at 54 so as to selectively receive in said notches, a latch or lock member 55. Latch has an upstanding operating handle 56 and is a lever pivoted by 'a pin 57 disposed on and transversely of the bearings The lever 25 is urged into engagement with the notches 54 by an expan sive coil spring 57 engaging a part of the lever andcarried'by the bearing 50. When lever is disengaged fromthe notches 54, it may be swung in a direction longitudinally of its axis so as to thereby turn bearings 50 and due to the eccentric mounting ofshaft 46,-vary its position. I

Shaft 46 has a relatively small gear wheel or pinion 59 keyed thereto. Pinion 59 is adapted to mesh with the teeth 60 of an internal gear wheel 61. Gear wheel 61 is rigid'ona shaft 62disposed transversely of the frame and journaled in suitable bearings 63 thereof. Also, a gear wheel or pinion -64is keyed on shaft 62 and disposed in con- Attention is stant mesh with the teeth 37. I called to the fact that instead of the gears 37 and 64, that a worm and worm wheel or other form of gearing may be substituted.

Gear teeth 60 are providedon the inner surface of a rim or band 65 of gear wheel 61. Theouter surface of said rim 65 is smooth so that the wheel 61 may be utilized as a brake drum. Tothis end, a flexible metallic brake band 66 surrounds the drum, preferably being lined as at 6'7 with felt, leather or the like. v One end of band 66 is immovably secured. to the frame A. Ad-

j acent the other end of band 66a lug 68 is fastenedand inwhich a link 69 is loosely mounted. Link 69' is ,pivoted to a' lever 70 which in'turnis pivoted to one of the beams 10, Lever 70 has a depending pedal as at 71 so that it may be operated by. foot in order to apply braking pressure to the wheel,-'61' and indirectly to the windlass C. As lever 70 is depressed, it coacts with aseries ofteeth (not shown) provided on a bar 7 3 fastened to one of the bolts 40 is depressed it successively engages or disengages the teeth onbar .73 and thus automatically holds thelever 70 in position to which it is adjusted. Thelever 70 at its pivothas slight lateral movement to permit its engagement or disengagement with the. teeth. 7 g 1 Suitable cross braces or bars 78 may be fas gened together and to the frame A as 3119' It is obvious that the parts may be made of any suitable material and are as usual entirely of metal aside from the brakelining 67 and aside from the cable 41 which while usually of metal may nevertheless be a rope or otherwise as preferred.

In operation the wheel 47 is driven by the engine of attractor by meansof a sprocket chain (not shown) and imparts rotative movement to the drive or master shaft 46 which through the medium of gear wheel 59, gear wheel 61, shaft 62, and'gea-r Wheels 64 and 37, rotates the Windlass or' drum C,

thus winding the cable 41 aboutthe same and causing such cable to pull stumps, skid material or perform other work, when the free end of the cable is fastened to the work which may be accomplished in any suitable manner as will be obvious. The lever 55. maybe operated at any desired timeso as to be disengaged from the notches 54 and thereafter be rocked in order to vary the position of shaft 46 and thereby disengage the gear wheel 59 from the teeth"60, so that the :windlass or drum will not be driven and will remain idle, which is" advantageous when the cable is being paid out for at tachment' to the object to be'pulled or skidded. In the aforesaidor release posi-.

tion, the lever 55'may' be fastened inanother of the notches 54'. When the Windlass or drunr C is to be driven, the lever 55 is appropriately operated so' asto rock the shaft 46' and restore mesh of the gear wheels-55 and '61, the parts being'fastened in that position by engagement of lever 55in the appropriate notch 54 under urgency of the spring 57. In order to check the rotation or motion of'the drum C, the lever 70 may be operated at its pedal 71 at any desired time in order to contract the brake band 66 about the wheels 61.

Having thus"'describe'd the f'invention, what I claim is y, i

1. An attachment of the classy described having a master shaft, a bearing in which said shaft is journaled, a bearing'in which said bearing is eccentrically an'dadjustably mounted, a latch on one of the bearings co-- acting with theother bearing to maintain thefirst mentioned bearing-in adjusted position, said latch being movable on an axis transverse to the shaft for engagement and is journaled, said arms having extensions,-

bearings in which said extensions areeccentrica-lly and ad ustabIy disposed, a lever pivoted and having its axis transverse to the' longitudinal axis of the first mentioned bearing, one of the second mentioned bearings'haying a plurality of notches adapted to receive said lever, and a spring to urge said lever into said notches, andjpower means controlled from said shaft.

3. An attachment of the class. described having a frame provided with side beams,

a driven shaft, an internal gear wheel on,v

said shaft, a pinion in meshwitlithe teeth of the latter gear wheel, a power shaft carrying vsaid pinion, hearings on the side" beams, a bearing having arms eccentricallyj and ad ustabIy disposed in said bear ngs,

the latter shaft fleeing journaled in said arms, said arms having shouldersabutting the adjacent bearings, a latch lever on the second mentioned vhearings, one of. the first bearings having notches engageable by said lever, and a spring to urge said lever into engagement with said notches. I In testimony whereof I affix my sigmature in presencev of two witnesses. I p A "CLAUDE E. DoasEY. 'Witnessesi' r WV. W; SAN ERS,

Y J. V.'WRI HT. 

